Match the entires of Column I with appropiate entires of column II and choose the correct option out of the four option (a) ,(b) ,(c ) (d) given at the end of each question
`{:(,"column I" ,, "column II "),((A) ,KMnO_(4) , (p), "used in salt bridge"),((B), SnCI_(2), (q), "used as an oxidising agent"),((C ) ,ZnSO_(4) , (r),"used as a reducing agent"),((D),K_(2)SO_(4) , (s),"used as electrolyte in daniell cell" ):}`

Answer

b